EP0718223A1 - Dispositif de transfert pour marchandises, notamment pour boîtes - Google Patents

Dispositif de transfert pour marchandises, notamment pour boîtes Download PDF

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Publication number
EP0718223A1
EP0718223A1 EP95115591A EP95115591A EP0718223A1 EP 0718223 A1 EP0718223 A1 EP 0718223A1 EP 95115591 A EP95115591 A EP 95115591A EP 95115591 A EP95115591 A EP 95115591A EP 0718223 A1 EP0718223 A1 EP 0718223A1
Authority
EP
European Patent Office
Prior art keywords
arm
transfer device
axis
goods
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95115591A
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German (de)
English (en)
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EP0718223B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LTG Lufttechnische GmbH
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LTG Lufttechnische GmbH
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Filing date
Publication date
Application filed by LTG Lufttechnische GmbH filed Critical LTG Lufttechnische GmbH
Publication of EP0718223A1 publication Critical patent/EP0718223A1/fr
Application granted granted Critical
Publication of EP0718223B1 publication Critical patent/EP0718223B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/82—Rotary or reciprocating members for direct action on articles or materials, e.g. pushers, rakes, shovels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90—Devices for picking-up and depositing articles or materials
    • B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
    • B65G47/914—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers provided with drive systems incorporating rotary and rectilinear movements

Definitions

  • the invention relates to a transfer device for goods delivered with a first transport device, in particular aluminum cans, which are transferred in groups as a row pointing in the transport direction of the first transport device from the first transport device to a second transport device, the goods being placed on the second transport device in this way that the row extends to its transport direction, with a receiving device that holds the respective group of goods during the transfer movement and is guided along a movement path by means of at least one articulated gear, the articulated gear having a first arm that can be pivoted at one end (first Axis) with the receiving device and at its other end is pivotally connected (second axis) to a rotating drive crank, and with a second arm which is pivotably (third axis) articulated on the first arm and about a fixed axis (fourth Axis) is pivotally mounted.
  • the first transport device can be, for example, a first run on which the goods are arranged in a row (in particular in a single row or also arranged in two rows or several rows next to each other).
  • the transfer device picks up a section, ie a group, of the goods from this row or these rows and transfers them to the second transport device, where the goods are placed. Stopping takes place with an alignment of the row or rows such that the longitudinal direction of the row or rows runs or run transversely to the transport direction of the second transport device. If, for example, the second transport device is also a run, the row of goods runs transversely, in particular perpendicular to the longitudinal extension of the run.
  • the goods can, for example, be cans, in particular beverage cans, which are successively printed on the outside in a printing machine upstream of the first transport device and then guided to the transfer device by means of the transport device.
  • the transfer device rearranges the cans received in groups in such a way that they are deposited on the second transport device in rows that run parallel to one another, the longitudinal extent of these rows extending transversely to the transport direction of the second transport device. In this way, the second transport device is very compactly loaded with goods which, in the case of the cans mentioned, are fed, for example, to a drying device (continuous drying device).
  • the conversion device is designed such that it takes up goods from the first transport device by means of its pick-up device, wherein it moves synchronously with the goods during the pick-up process, so that during the pick-up process there is little or no relative movement between the goods and the pick-up device. This guarantees a positionally accurate and therefore safe transfer even at high speeds.
  • the receiving device moves synchronously or almost synchronously with the means of transport of the second transport device in a defined movement path region, so that it can be set down in a precise position without the goods hitting or falling over and so on.
  • a vacuum holder is preferably used for this, that is, the goods are sucked in from above and then transferred. It is not necessary for this that the receiving device changes its height position, but it can move in one plane. If it is at a short distance above the top of the can when it is picked up, this is sufficient for a suction process. The same applies to settling, the settling process being brought about by switching off the vacuum and thereby the goods released and parked on the second transport device.
  • a transfer device of the type described at the outset is apparent from European patent application 0 563 461.
  • This known transfer device has the disadvantage that very high acceleration forces act on the machine frame during operation, so that there is a restless, not vibration-free run, which on the one hand involves high material stress and on the other hand complicates the accurate picking up and setting down of the goods.
  • the picking up and setting down of the goods by means of vacuum is not optimal in the known device.
  • the invention is therefore based on the object of avoiding the disadvantages mentioned above for optimal operation of the transfer device.
  • This object is achieved according to the invention by a (first) counterweight assigned to the first arm.
  • the movement of the transfer device is characterized by high acceleration and deceleration processes, since during the recording process the recording device must be moved in synchronism with the first transport device, then the transfer movement to the second transport device takes place and there must in turn be coordinated with the speed of the second transport device. Then the receiving device is then back to the first transport device, where the process is repeated accordingly.
  • the transport direction of the first transport device extends transversely, in particular perpendicularly, to the transport direction of the second transport device.
  • the storage levels of the two transport devices are arranged at the same height.
  • the first arm is assigned a counterweight
  • the forces acting on the arms and other parts of the transfer device are reduced or compensated due to the dynamic movements, which makes it possible to dimension the vibration-free machine frame correspondingly weaker, i.e. to save material.
  • the positional accuracy when picking up and setting down the goods and the ability to hold and hold the goods in position on the receiving device are optimally guaranteed due to the freedom from vibration.
  • the machine components and the support of the frame to the floor can be dimensioned correspondingly weaker due to this vibration-free or vibration-reduced run, so that costs are saved and operational reliability is considerably increased.
  • a (second) balance weight is also assigned to the second arm.
  • the peculiarity is that it was recognized that the assignment of a counterweight to the first and possibly also to the second arm brings about positive effects, whereby from the huge number of possibilities of arranging one or more counterweights, these special places have been selected.
  • the first balance weight is arranged on the first arm in the region of the second axis.
  • the first counterweight is designed in the form of an extension arm of the first arm, the extension arm extending transversely to the longitudinal extent of the first arm.
  • the phrase "boom" is to be understood in terms of the weight distribution of the arm, that is, it is not absolutely necessary for a boom to be physically formed, even if this is indicated in the figures in the exemplary embodiment, but it is important that that a corresponding mass is arranged to the side of the longitudinal extension of the first arm, so that this counterweight is formed.
  • the actual shape of the first arm does not matter.
  • the boom forms a side boom of the first arm.
  • the first arm forms an angle arm together with the arm, the second axis being arranged in the corner region of the angle.
  • the mass of the first counterweight can be adjusted by adding or removing weights.
  • This also applies to the second counterweight.
  • it can be provided in the first and / or second counterweight that the position of the counterweight or counterweights can be adjusted by means of adjusting means in such a way that an optimal result is achieved.
  • the second arm is preferably extended beyond its fixed axis and has the second counterweight there. This can be arranged symmetrically to the longitudinal central axis of the second arm.
  • the receiving device is preferably designed as a vacuum suction device for the goods. This means that the goods are sucked in by means of negative pressure and held during the transfer movement and, as soon as the second transport device has been reached, released and set down by switching off the vacuum.
  • the vacuum is controlled by a vacuum control device which has a swivel flap which is arranged in a vacuum line and is controlled synchronously with the movement of the receiving device. As a result, the vacuum line is closed or released, depending on whether the goods are to be held (holding mode) or whether they are to be released (parking mode).
  • the swivel flap is released, depending on whether the goods are held (holding operation) or whether they should be released (storage operation).
  • the swivel flap is preferably located in an expanded cross-sectional area of the vacuum line.
  • a bypass air flap is preferably coupled to the swivel flap, which closes an ventilation opening in the holding mode and releases the ventilation opening in the shutdown mode. This ensures that the vacuum breaks down very quickly during the transition from the holding mode to the parking mode, so that the goods are all released at the same time in the millisecond range and parked properly aligned.
  • FIG. 1 shows a plan view of a transfer area of goods 1, the goods 1 being freshly painted tin cans as are known, for example, from the beverage industry.
  • the goods 1 are delivered as a row on a first transport device 2.
  • the first transport device 2 is preferably designed as a first strand 3.
  • the goods 1 therefore stand as a row on the run and are transported in the direction of arrow 4.
  • the transport direction 4 points in the longitudinal direction of the row of goods 1.
  • a group 5 of the goods 2 is detected by means of a transfer device (not shown in FIG. 1) and transferred to a second transport device 6.
  • Group 5 is identified by a rectangle in which there is a corresponding number of goods 1.
  • the second transport device 6 is also a (second) strand 7 which moves in the direction of the arrow 8.
  • the transfer device (not shown) transfers the group 5 in such a way that the goods 1 arranged in a row in it are in a row orientation which runs transversely, in particular perpendicularly, to the transport direction 8 of the second transport device 6. It is therefore clear from FIG.
  • the width of the run 6 preferably being the length of the group 5 corresponds and the transfer process takes place so quickly and in a coordinated manner that a group 5 of goods 1 is always available on the first transport device 2 when the previous setting process of a group 5 has ended, so that the new group 5 transfers to the second transport device 6 is such that the individual rows set there - seen in the transport direction 8 - are close to each other, but without touching the individual goods 1.
  • a very high density of goods 1 can be created on the second transport device 6.
  • FIG. 2 shows an arrangement corresponding to FIG. 1, but two rows of goods 1 running parallel to one another are delivered on the first transport device 2 and the transfer device (not shown) is designed in this way is that it always transfers two parallel rows of goods 1 from the first transport device 2 to the second transport device 6 within a group 5. According to embodiments not shown, it is also possible to transfer three or even more parallel rows of goods 1.
  • FIG. 3 illustrates the above statements.
  • the transfer device 9 is shown purely schematically. It has a bar-shaped receiving device 10, which has suction slits 12 on its underside 11 facing the goods 1, which pass opposite to the goods 1 of the transport device 2.
  • the transfer device 9 moves almost synchronously with the movement of the goods 1 on the first transport device 2, so that there is almost no relative movement.
  • the negative pressure is generated in the receiving device 10, whereby the goods 1 are sucked in and held on the underside 11 of the receiving device 10.
  • the receiving device 10 runs through a curved path 13, that is to say it moves in the direction of the second transport device 6, whereby it assumes a speed which corresponds to the transport speed and the transport direction of the second transport device 6.
  • the vacuum is switched off and the goods 1 are released, which then change according to their row-like orientation Set down on the run 7 and run in the direction of the arrow 8, for example into a drying tunnel 14.
  • the receiving device 10 briefly comes to a standstill (point 15) and is then returned correspondingly accelerated, in order in turn to be able to pick up goods 1 from the first transport device 2.
  • the process described is therefore repeated cyclically, with very high speeds, for example up to 1500 cans per minute, being driven (single row according to FIG. 1).
  • the number of cans that are transferred per minute also depends on the width of the second transport device 6. Because of the very smooth running of the transfer device 9 according to the invention, which will be discussed in more detail below, it is possible to use one compared to the known transfer devices implement larger number of cans per unit of time.
  • the cam track 13 of the receiving device 10 is brought about by means of an articulated gear 16, as is shown schematically in FIG.
  • an articulated gear 16 there two identical articulated gears 16 are shown, which engage along the longitudinal extent of the beam-shaped receiving device 10 once in the one and once in the other end region of this receiving device 10, the two articulated gears 16 being synchronized with respect to their movement and having the same sequence. In the following, therefore, only the formation of an articulated gear 16 is discussed. The executions apply in a corresponding manner to the other articulated gear 16.
  • the articulated gear 16 has a first arm 17 which is pivotally connected to the receiving device 10 at one end 18 by means of a first axis 19.
  • the other end 20 of the first arm 17 is pivotally connected by means of a second axis 21 to a rotating drive crank 22 which is designed as a wheel 24 rotating by means of a bearing 23 fixed to the machine frame.
  • the revolving circuit of the second axis 21 is identified in FIG. 4 by the reference number 25.
  • a third axis 26 is formed on the first arm 17, by means of which a second arm 27 is pivotably articulated on the first arm 17.
  • the top view of FIG. 4 clearly shows that the third axis 26 lies on the right side of an imaginary connecting line between the first axis 19 and the second axis 21.
  • the second arm 27 is pivotally mounted by means of a bearing fixed to the machine frame, that is to say the bearing forms a fixed axis, which is referred to below as the fourth axis 28.
  • FIG. 4 shows that the second arm 27 is extended beyond the fourth axis 28. This extension is identified by reference number 29.
  • the receiving device 10 will perform a corresponding movement by means of the first arm 17 acting as a coupling, this movement being positively guided by the second arm 27, so that it results resulting in the curved path 13.
  • two positions of the articulated gear 16 are shown in FIG. 4, one position in a solid line and another position in a broken line.
  • the position marked with a solid line corresponds to a pick-up position, that is to say the receiving device 10 takes over goods 1 from the first transport device 2 in this position.
  • the position marked with a broken line corresponds to a pull-down position, that is to say the Goods 1 have been transferred to the second transport device 6 and are deposited there in this position.
  • the first arm 17 is assigned a first balance weight 31 and / or the second arm 27 a second balance weight 32.
  • the figures show that the first balance weight 31 in the area the second axis 21 is arranged.
  • the balance weight 31 forms a type of arm 33, the arm 33 - as shown in FIG. 6- running to the left of the longitudinal axis of the first arm 17, provided that the arm 17 is viewed starting from the first axis 19 to the second axis 21.
  • weights can be plate-shaped circular disks, for example, which can be arranged there by means of suitable fastening means.
  • the desired balance weight can be adjusted by adding or removing weights.
  • adjustment means are provided for shifting the position of the balancing weights, whereby a precise balancing can take place.
  • adjustment means can be formed, for example, by rows of holes, which enable the corresponding counterweights to be offset, the rows of holes being penetrated by corresponding screw connections.
  • the arm 27 was created, for example, by means of laser cutting from plate-shaped material and thereby forms a type of receiving platform 35 in the region of its extension 29, onto which - if necessary - further counterweights can be applied.
  • Corresponding position change means are also provided here, as previously described for the first counterweight.
  • FIG. 5 which shows a side view of FIG. 4 (arrow 36 in FIG. 4), makes it clear that the receiving device 10 has on its side a suction box 37 which is connected via flexible vacuum lines 38 to a vacuum source, not shown, for example a fan is.
  • a vacuum control device 39 (FIGS. 9 and 10) is located in the route of the vacuum lines 38, which serves to generate the vacuum in the receiving device 10 or to switch off the vacuum when the goods 1 are set down.
  • the vacuum source therefore operates continuously and the vacuum control device 39 carries out the switching on and off of the vacuum.
  • the vacuum control device 39 has a cross-section 40 which is enlarged compared to the vacuum line 38 and in which a pivoting flap 41 is pivotably arranged by means of its pivot axis 42.
  • the swivel axis 42 is located in the central region of the swivel flap 41.
  • An actuating arm 43 is connected in a rotationally fixed manner to the swivel axis 41 and leads via a mechanical linkage 44 (not shown in more detail) to the drive crank 22, which is only schematically indicated in FIG.
  • the bypass air flap 45 interacts with a ventilation opening 46 which leads to the outside.
  • the arrangement is now such that the bypass air flap 45 closes the ventilation opening 46 in the holding mode, so that the vacuum in the up receiving device 10 is maintained.
  • the bypass air flap 45 opens the ventilation opening 46, and the vacuum in the receiving device 10 can be released in an extremely short time and the goods 1 can be released in a defined manner.
  • FIGS. 9 and 10 show different positions of the vacuum control device 39, which can best be seen by comparing the position of the drive crank 22.
  • FIG. 9 shows the position in which the swivel flap 41 has just closed and the bypass air flap 45 is about to open the ventilation opening 46. Thus, the deposition of goods 1 is initiated.
  • FIG. 10 shows the position of the swivel flap 41 and the bypass air flap 45, in which the holding mode is currently being switched over, that is, the suction of the goods 1 is to be initiated.
  • the direction of rotation of the drive crank 22 is indicated in FIGS. 9 and 10 by means of the arrow 47; the corresponding direction of rotation of the swivel flap 41 is indicated by the arrow 48 and the air flow direction for generating the vacuum is indicated by the arrow 49.
  • a phase adjustment gear 50 is arranged in the region of the mechanical linkage 44, as shown in FIG. 11.
  • This has four gear wheels 51 arranged in one plane, which are wrapped by a toothed belt 52 are.
  • the toothed belt 52 also runs over two toothed wheels 53 which are arranged on a slide 56 which can be adjusted along the double arrow 55 by means of an adjusting spindle 54. Beginning with the gear 51 arranged at the bottom left, the toothed belt 52 initially runs upward, half wraps around the gearwheel 51 arranged there and then runs downward and wraps around the first gear 53 of the carriage 56 from below.
  • the toothed belt 52 runs again above and half wraps around another of the gearwheels 51 mentioned and runs from there downward to another gearwheel 51, which is also wrapped half around. From there, the toothed belt 52 runs upward to the second of the two gearwheels 53 mentioned and wraps half of it and again runs downward to the starting point, namely the gearwheel 51 mentioned at the beginning.
  • the gearwheel 51 arranged at the bottom left is rotatably connected to a lever 57, that leads to linkage 44; the gear 51 arranged at the bottom right also has a lever 58 which, as a continuation of the linkage 44, leads to the vacuum control device 39.
  • the gear 51 can also be connected directly to the wheel 24 via, for example, an additional toothed belt.
  • the goods are not transferred from the first transport device to the second transport device, but if the goods are moved from the second transport device to the first transport device.
  • the associated movements of the articulated gearbox can then only be understood and interpreted in the corresponding reverse manner. The same naturally applies to the vacuum control device and its control and so on.
  • the above-mentioned angle sensor arrangement also permits speed determination in any operating state, for example also when starting off, so that the speeds of the first and second transport devices and of the transfer device are always coordinated with one another.
  • individual parameters of the overall arrangement can thus be coordinated with one another; in particular also the control points of the vacuum control device. In this way, for example, dead times in the generation of negative pressure can be compensated for, ie the switching function becomes independent of the speed.
  • the first transport device runs from right to left for the then backward removal of the goods by means of the second transport device. If the first transport device (according to another exemplary embodiment) would convey from left to right, the construction of the transfer device is to be carried out in mirror image to the representation of FIG.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Specific Conveyance Elements (AREA)
  • Intermediate Stations On Conveyors (AREA)
EP95115591A 1994-12-19 1995-10-04 Dispositif de transfert pour marchandises, notamment pour boítes Expired - Lifetime EP0718223B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4445108A DE4445108C2 (de) 1994-12-19 1994-12-19 Umsetzvorrichtung für Güter, insbesondere Dosen
DE4445108 1994-12-19

Publications (2)

Publication Number Publication Date
EP0718223A1 true EP0718223A1 (fr) 1996-06-26
EP0718223B1 EP0718223B1 (fr) 1998-09-16

Family

ID=6536143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95115591A Expired - Lifetime EP0718223B1 (fr) 1994-12-19 1995-10-04 Dispositif de transfert pour marchandises, notamment pour boítes

Country Status (5)

Country Link
US (1) US5579893A (fr)
EP (1) EP0718223B1 (fr)
JP (1) JPH08239120A (fr)
DE (1) DE4445108C2 (fr)
ES (1) ES2122417T3 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19624709C2 (de) 1996-06-21 2002-09-19 Ltg Lufttechnische Gmbh Vakuumsteuerung bei einer Umsetzvorrichtung, insbesondere für Dosen
US6209706B1 (en) 1999-02-26 2001-04-03 G. Robert Tod, Jr. Article grouping and transferring system
ITBO20010199A1 (it) * 2001-04-03 2002-10-03 Sacmi Apparecchiatura per il trasferimento di prodotti frutticoli da un convagliatore su un altro ad esso perpendicolare
DE10127896B4 (de) * 2001-06-08 2005-02-24 Indag Gesellschaft für Industriebedarf mbH & Co. Betriebs KG Übergabevorrichtung und -verfahren für Folienbeutel
DE202006000593U1 (de) 2006-01-13 2006-05-18 Bathon, Leander, Prof. Dr. Bauwerke in Holz-Beton-Verbundbauweise
DE202007019372U1 (de) 2007-11-30 2012-05-15 Leander Bathon Verbindungsvorrichtung
DE102007058146A1 (de) 2007-11-30 2009-06-04 Bathon, Leander, Prof. Dr. Verbindungsvorrichtung und Verfahren zur Herstellung einer Verbindungsvorrichtung
DE102008009993B4 (de) * 2008-02-19 2016-01-28 Hof Sonderanlagenbau Gmbh Verfahren zum reihenweisen Separieren einer Anzahl von Vials aus einer Vielzahl von in mehreren Reihen angeordneten Vials und Vorrichtung hierfür
EP3184181B1 (fr) * 2015-12-23 2021-06-23 Sidel End of Line & Tunnels Solutions Srl Chargement d'une unité de lavage
EP3453653A1 (fr) * 2017-05-02 2019-03-13 GEA Food Solutions Germany GmbH Unité bras-transfert d'extrémité de ligne
US11345626B1 (en) * 2018-07-23 2022-05-31 Gerresheimer Glass Inc. Glass manufacturing apparatus and method
DE102018118716A1 (de) * 2018-08-01 2020-02-06 Texa Ag Verfahren, Vorrichtung und System zum Gruppieren, insbesondere Palettieren von Produktrohlingen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563461A1 (fr) * 1992-04-03 1993-10-06 Machinefabriek "Csw" B.V. Dispositif de chargement

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Publication number Priority date Publication date Assignee Title
US793212A (en) * 1903-08-27 1905-06-27 John Howard Mcelroy Automatic blank-feeding apparatus.
US2217982A (en) * 1939-04-27 1940-10-15 Heil Co Receptacle transfer mechanism
US2452376A (en) * 1942-11-04 1948-10-26 Standard Knapp Corp Bottle packing machine
US3776342A (en) * 1972-01-27 1973-12-04 Emhart Corp Apparatus for transferring articles between moving conveyors
US3958683A (en) * 1974-09-27 1976-05-25 Midland-Ross Corporation Conveyor system including article regrouping apparatus
DE4116323A1 (de) * 1991-05-16 1992-11-19 Mannesmann Ag Ausschleusvorrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563461A1 (fr) * 1992-04-03 1993-10-06 Machinefabriek "Csw" B.V. Dispositif de chargement

Also Published As

Publication number Publication date
EP0718223B1 (fr) 1998-09-16
US5579893A (en) 1996-12-03
DE4445108C2 (de) 1997-06-05
JPH08239120A (ja) 1996-09-17
ES2122417T3 (es) 1998-12-16
DE4445108A1 (de) 1996-06-20

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